Remove floating point exception.
Add plugin summaries for pco and mock
Add .travis.yml
Markdownify README
Enable both gcc and clang
Ignore all kinds of build directories
Initialize result variable

Thanks clang!
pco: fix #9, override is-recording property
Fix #2: thorough error checking on all occasions
pco: simplify buffer size handling
Read properties in one go
Call pco_request_image only in non-readout mode

This should improve performance by 25 per cent.
Travis: build debug and release

For now the Clang/Release combination is excluded as it gets stuck in a futex
deadlock. Apparently, this has something to do with the way a GModule is called.
Cleanup CMakeLists.txt
Use ConfigurePaths to get installation paths

The advantage is twofold: 1) we have a clear separation between setting up the
paths and actually using them, 2) the interface is very likely as configure
scripts and makes integration into build system a bit easier.
Release version 1.4
Fix Glade path
Post-release bump
Fix installation path of header files
Include directory where config.h is located